14. The light was on for 5 seconds.
15.
Conclusion:
16. You can have a Plus 1 command and then the next step could have a Minus 1 command. That will make the variable block equal zero.
17. An industrial or manufacturing engineering may need to keep track of how many products they place in a box. If the box can only hold 10 items, then the engineer will have to set the program so that it stops after it places 10 items in the box so that they can switch out the box.
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